CompactFlash connector |
pinout (распиновка) |
Developed by SanDisk. Is compatible with PC-Card ATA with a simple passive adapter.
50 pin CompacFlash FEMALE connector at the controller | Shown looking into card
ConnectorPin pitch is 0.05". So it is best suited to surface mount. It is more convenient to lay out PCB tracks so that they approach from both edges instead of interleaving them as is usually done for ATA/IDE connectors. In the UK, CPC sell CF headers, part ref CN5037. See http://www.compactflash.org/ for the definitive specification. NotesCF combines features from ISA bus, 16-bit PCMCIA, and ATA/IDE buses. It can appear as I/O mapped, memory mapped, or as an IDE device. The IDE mode is always 16-bit, but I/O and memory modes can present data as 8 or 16-bits. These features make it the most flexible choice, allowing it to be used by devices other than the PC - such as 8-bit processors in consumer electronics. The memory-mapped mode occupies 1K of address space, the top half containing the selected page of data.
1. Devices should allow for 3-state signals not to consume
current. * indicates active low signal
Source CodeSandisk"s design page has a freeware ATA Driver / FAT File System, and a circuit diagram for an IDE to CF adapter. The latter has no buffers, so it might be wise to avoid loading it with long drive cables.
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